376 4S6. HEMIPTEHIS. 



H. IW^epneri, K*#., Fed., Rep., V, 38. 



Rhizome and stipes unknown. Fronds (os cobod i ) pedate, with the prim- 

 ary segments of the primary branches elongate-ovate, about 50 — 100 cm. 

 long, + 30 C.3I. broad, pinnate like the terminal segments. Secondary seg- 

 ments multijugate, alternate, subcontiguous, linear-lanceolate, erecto-patent, 

 deeply pinnatifid, narrowed towards the serrate apex^ the point entire, the 

 largest ones + 25 c.M. long, + 3 c.M. broad, the higher ones suberect 

 and smaller than the lower ones. Lobes multijugate, erecto-patent, not 

 very distant, joined at the base by a wing + 1 m.M. broad, linear, 

 l*/j c.M. long, Vj c.M. broad, the apex obtuse, the margin serrato- 

 dentate, the teeth slightly crenate. Texture membranaceo-herbaceous ; surfaces 

 naked; costae and coslulae sparingly clothed with minute, linear or irregu- 

 larly dilacerate scales, flattened above and provided there with whitish-mem- 

 braoaceous, subinterrupted, unequal wings (the internodes narrow at the 

 base and broad at the apex); veins anastomosing, forming principally costal 

 and custular areolae, the branches free or slightly anastomosing. Sori 4 — 5 

 on each side of the lobes, occupying the posterior side of the ultimate lacinulae 

 (i. e. the teeth) from the base to the apex ; indusium grey-brown. 



New Guinea. 



4e. E»J\.ESLA., St. EKIaire. 



Sori linear, submarginal, uniting the apices of several veins. Indusium 

 linear, consisting of the reflexed, modified margin of the frond, often 2-valved, 

 the inner valve attached at the inner side of the sorus. Spores bilateral. 



Rhizome creeping. Stipes distant, not articulate to the rhizome, purveyed 

 with a single, + semicylindrical vascular strand. Fronds compound; veins 

 free. Diels, in Engl. .<c Prantl, Nat. Pfl.Fam., I*, fig. 156, fi— E. 



America, Polynesia, Malaya. 



* (1) V radiila, C. Chf., Ind. Fil.; Pleris Radula, Bk., Journ. of 

 Bot, XVIII, 211. 



Rhizome wide-creeping. Stipes distant, brown, naked, 15—30 c.M. long, 

 rough with minute, raised points like the flexuose rachis. Fronds lanceolate, 

 5-pinuatifid or 3-pinnale, 20—40 c.M. long, 7 — 10 c.M. broad. Lower pinnae 

 erecto-patent, often cut away on the lower side at the base, lanceolate-deltoid. 



